Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As Alfalfa transitions from August to September, the average high-temperatures adjust to a still tropical 88°F (31.1°C), nearly the same as the previous 92.8°F (33.8°C). During the nights in September, Alfalfa observes an average low-temperature of 68°F (20°C).Heat index
The heat index value for September is appraised at a blisteringly hot 104°F (40°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The average relative humidity in September is 76%.Rainfall
In September, the rain falls for 14.8 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 164.9 rainfall days, and 35.43" (900mm) of precipitation is accumulated.Snowfall
In Alfalfa, snow does not fall in March through November.Daylight
In September, the average length of the day is 12h and 21min.On the first day of September, sunrise is at 6:46 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:56 pm CDT.
Sunshine
In Alfalfa, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Alfalfa?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Alfalfa?
How many hours of daylight does Alfalfa have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Alfalfa, LA
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in September: 68°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure in September
Alfalfa, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Alfalfa, LA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July, August and September (5mph).
Average humidity in September
Alfalfa, LA
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Alfalfa, LA
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in September
Alfalfa, LA
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is October (9.9 days).
Average snowfall in September
Alfalfa, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Alfalfa, LA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Alfalfa, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Alfalfa, LA
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Alfalfa, LA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Alfalfa, LA
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Alfalfa, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, June, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May, July, August and September (5mi).
Alfalfa, Louisiana, USA
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